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andreazambon's avatar
andreazambon
Helper V
2 years ago
Solved

Create powerBI columns with SQL queries

Hello there.    In PowerQuery I use to build columns with M code and, if I need it, merging tables. My tables usually are excel tables. This way is quite a trash. I would like to be more efficient...
  • j_ocean's avatar
    2 years ago

    If your source is SQL it automatically converts as much as it can to SQL and pushes the work up to the SQL server.

     

    You can manually write out SQL when you establish the connection, this is *usually* meant to copy-paste in an existing extract vs writing new SQL but nothing is stopping you writing new code there.

     

    If your source is excel files you're out of luck. There's no SQL engine for it to send your code to.

  • Anonymous's avatar
    Anonymous
    2 years ago

    Hi andreazambon ,

     

    In Power Query, only M code can be used.

    However, you can use SQL statements to pre-filter when connecting to SQL Server.

    Tutorial: Connect to on-premises data in SQL Server - Power BI | Microsoft Learn

     

    Some ways about filtering in Power Query for your reference:

    Filter data (Power Query) - Microsoft Support

     

     

    Best Regards,

    Stephen Tao

     

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